US Patent No: 5,308,311

Number of patents in Portfolio can not be more than 2000

Electrically heated surgical blade and methods of making

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A hemostatic surgical blade and methods of manufacturing such blades are provided, wherein the blade comprises a laminate region having a hardenable center layer and highly thermally conductive outer layers, joined to a second region of a low thermal conductivity material. A heating element is secured to the laminate region and in thermal communication therewith to thermally reform the collagen of tissue as it is incised. The heat generated by the heating element is conducted to the cutting edge of the blade to maintain the cutting edge temperature within 20.degree. C. to 70.degree. C. of a user-selected operating temperature. The second region reduces the conduction of heat to the handle of the instrument. The heating element comprises a thermally conductive dielectric layer attached to an outer surface of the laminate region, resistive conductive elements deposited on the dielectric, a second dielectric layer covering the resistive conductor elements, and an abherent coating disposed thereon to reduce coagulum buildup on the blade.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
GYRUS ACMI, INC.SOUTHBOROUGH, MA160
GYRUS ENT, L.L.C.BARTLETT, TN54
HEMOSTATIC SURGERY CORPORATION, A CAYMAN ISLANDS COMPANYPALO ALTO, CA4

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Eggers, Philip E 1750 Taylor St., Dublin, OH 220 37321
Shaw, Robert F 1750 Taylor St., San Francisco, CA 94108 22 2144

Cited Art Landscape

Patent Info (Count) # Cites Year
 
HEMOSTATIC SURGERY CORPORATION (1)
* 4,848,337 Abherent surgical instrument and method 95 1986
 
HEMOSTATIC SURGERY CORPORATION, A CAYMAN ISLANDS COMPANY (2)
* 4,485,810 Surgical cutting blade 45 1980
* 4,481,057 Cutting device and method of manufacture 69 1981
 
Megadyne Medical Products, Inc. (1)
* 4,785,807 Electrosurgical knife 159 1987
 
ELLMAN INTERNATIONAL, INC. (1)
* 4,754,754 Electrosurgical handpiece for blades and needles 64 1986
 
AMP-AKZO CORPORATION (1)
* 4,770,067 Method of manufacturing surgical cutting tools for thermally aided surgery 15 1987
 
GYRUS MEDICAL, INC. (2)
* 4,862,890 Electrosurgical spatula blade with ceramic substrate 104 1988
* 4,850,353 Silicon nitride electrosurgical blade 152 1988
 
Everest Medical Corporation (2)
* 4,802,476 Electro-surgical instrument 102 1987
* 4,958,539 Method of making an electrosurgical spatula blade 82 1989
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (2)
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SurgRX (1)
* 2004/0116,979 Electrosurgical instrument and method of use 28 2003
 
HEMOSTATIX MEDICAL TECHNOLOGIES LLC (2)
* 2009/0112,200 Hemostatic surgical blade, system and method of blade manufacture 51 2007
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Bakery Holdings LLC (1)
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SURGRX, INC. (3)
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Domain Surgical, Inc. (29)
8,523,850 Method for heating a surgical implement 0 2009
8,523,851 Inductively heated multi-mode ultrasonic surgical tool 0 2009
8,523,852 Thermally adjustable surgical tool system 0 2009
8,506,561 Catheter with inductively heated regions 1 2009
* 8,491,578 Inductively heated multi-mode bipolar surgical tool 22 2009
8,430,870 Inductively heated snare 0 2009
8,419,724 Adjustable ferromagnetic coated conductor thermal surgical tool 1 2009
8,414,569 Method of treatment with multi-mode surgical tool 0 2009
8,377,052 Surgical tool with inductively heated regions 9 2009
8,372,066 Inductively heated multi-mode surgical tool 1 2009
8,292,879 Method of treatment with adjustable ferromagnetic coated conductor thermal surgical tool 3 2009
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9,078,655 Heated balloon catheter 0 2011
9,131,977 Layered ferromagnetic coated conductor thermal surgical tool 0 2012
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8,915,909 Impedance matching circuit 2 2012
8,858,544 Surgical instrument guide 0 2012
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8,425,503 Adjustable ferromagnetic coated conductor thermal surgical tool 0 2012
8,617,151 System and method of controlling power delivery to a surgical instrument 0 2012
9,265,553 Inductively heated multi-mode surgical tool 0 2013
9,320,560 Method for treating tissue with a ferromagnetic thermal surgical tool 0 2013
9,265,554 Thermally adjustable surgical system and method 0 2013
9,265,555 Multi-mode surgical tool 0 2013
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7,909,819 Monopolar electrosurgical return electrode 6 2006
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6,261,311 Method and apparatus for treating intervertebral discs 232 1999
6,517,568 Method and apparatus for treating intervertebral discs 72 2000
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7,309,336 Catheter for delivery of energy to a surgical site 37 2004
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8,226,697 Method for treating intervertebral disc 0 2007
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* 2008/0051,859 METHOD FOR TREATING INTERVERTEBRAL DISCS 4 2007
7,647,123 Method for treating intervertebral discs 17 2007
 
SURGINETICS INC. (13)
8,562,603 Method for conducting electrosurgery with increased crest factor 0 2006
8,357,154 Multielectrode electrosurgical instrument 0 2006
8,357,155 Multielectrode electrosurgical blade 0 2006
7,935,112 Electrosurgical instrument 0 2006
7,935,113 Electrosurgical blade 1 2006
7,896,875 Battery powered electrosurgical system 0 2006
7,867,225 Electrosurgical instrument with needle electrode 0 2006
7,867,226 Electrosurgical needle electrode 0 2006
* 2007/0005,057 Electrosurgical Blade With Profile For Minimizing Tissue Damage 33 2006
* 2007/0005,056 Electrosurgical Instrument With Blade Profile For Reduced Tissue Damage 34 2006
* 2007/0005,059 Electrosurgical Needle Electrode 33 2006
* 2007/0005,054 Electrosurgical Instrument 32 2006
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Hot Edge Oy (1)
* 2011/0099,742 Heated Ice Scraper 0 2009
 
COVIDIEN LP (4)
8,292,888 Bipolar or ultrasonic surgical device 116 2002
* 2002/0165,541 Bipolar or ultrasonic surgical device 297 2002
8,523,890 Bipolar or ultrasonic surgical device 0 2012
8,845,665 Bipolar or ultrasonic surgical device 0 2013
 
ORATEC INTERVENTIONS, INC. (17)
6,482,204 Method and apparatus for controlled contraction of soft tissue 47 1996
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6,461,353 Orthopedic apparatus for controlled contraction of collagen tissue 8 1997
6,168,593 Electrode for electrosurgical coagulation of tissue 175 1998
* 6,135,999 Concave probe for arthroscopic surgery 202 1998
* 5,954,716 Method for modifying the length of a ligament 242 1998
* 6,007,533 Electrocauterizing tip for orthopedic shave devices 63 1998
* 6,004,320 Clip on electrocauterizing sheath for orthopedic shave devices 59 1998
6,283,960 Apparatus for delivery of energy to a surgical site 96 1998
6,214,001 Electrocauterizing tool for orthopedic shave devices 97 1998
6,176,857 Method and apparatus for applying thermal energy to tissue asymmetrically 117 1998
6,358,273 Soft tissue heating apparatus with independent, cooperative heating sources 45 1999
6,350,262 Method and apparatus for applying thermal energy to tissue asymetrically 139 2000
6,391,028 Probe with distally orientated concave curve for arthroscopic surgery 96 2000
6,645,203 Surgical instrument with off-axis electrode 26 2001
6,695,839 Method and apparatus for treatment of disrupted articular cartilage 42 2001
6,645,204 Intervertebral disc device employing flexible probe 0 2001
 
MICROLINE SURGICAL, INC. (4)
6,287,305 Electrosurgical instrument 111 1997
6,241,723 Electrosurgical system 308 1999
6,533,781 Electrosurgical instrument 56 2000
7,377,919 Electrosurgical instrument 30 2004
 
ETHICON ENDO-SURGERY, INC. (39)
6,773,409 Surgical system for applying ultrasonic energy to tissue 362 2001
6,929,644 Electrosurgical jaw structure for controlled energy delivery 456 2001
6,913,579 Electrosurgical working end and method for obtaining tissue samples for biopsy 235 2002
* 2002/0169,392 Electrosurgical working end and method for obtaining tissue samples for biopsy 4 2002
7,083,619 Electrosurgical instrument and method of use 364 2002
6,802,843 Electrosurgical working end with resistive gradient electrodes 445 2002
* 2003/0069,579 Electrosurgical working end with resistive gradient electrodes 2 2002
6,926,716 Electrosurgical instrument 503 2002
* 2003/0144,652 Electrosurgical instrument 23 2002
7,011,657 Jaw structure for electrosurgical instrument and method of use 388 2003
7,112,201 Electrosurgical instrument and method of use 216 2003
* 2003/0171,748 Electrosurgical instrument and method of use 4 2003
7,041,102 Electrosurgical working end with replaceable cartridges 465 2003
* 2003/0220,637 Electrosurgical working end with replaceable cartridges 31 2003
6,905,497 Jaw structure for electrosurgical instrument 359 2003
* 2003/0199,870 Jaw structure for electrosurgical instrument 19 2003
7,070,597 Electrosurgical working end for controlled energy delivery 379 2003
* 2004/0215,185 Electrosurgical working end for cotrolled energy delivery 2 2003
7,087,054 Electrosurgical instrument and method of use 370 2003
7,169,146 Electrosurgical probe and method of use 364 2004
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7,189,233 Electrosurgical instrument 196 2004
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7,309,849 Polymer compositions exhibiting a PTC property and methods of fabrication 169 2004
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7,381,209 Electrosurgical instrument 173 2007
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7,981,113 Electrosurgical instrument 56 2008
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9,149,326 Electrosurgical instrument and method 0 2013
 
SUMITOMO RUBBER INDUSTRIES, LTD. (1)
7,449,019 Intervertebral decompression 39 2003
 
OLYMPUS CORPORATION (1)
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Team Medical, LLC (1)
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Hemostatix Medical Techs, LLC (1)
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A.T.C.T. Advanced Thermal Chips Technologies Ltd. (1)
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SYNERON MEDICAL LTD. (1)
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WATLOW ELECTRIC MANUFACTURING COMPANY (1)
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Applied Komatsu Technology, Inc. (1)
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Aseptico, Inc. (1)
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7,150,747 Electrosurgical cutter 39 2003
 
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LINVATEC CORPORATION (2)
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Clinicon Corporation (1)
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SENORX, INC. (1)
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GFD Gesellschaft für Diamantprodukte mbH (1)
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* Cited By Examiner